平凸透镜一面凸面一面平面，具有正焦距，为减少球差，平凸透镜用于准直光束聚焦时，光束应入射到透镜曲面上;用于点光源准直时，光束入射在平面上。
通常用于缩小光束、减小焦距或放大图像等相关应用。
常规产品规格如下表，我们也可以为客户定做各种规格的平凸透镜。
通用规格
| 材料： | 各种冕牌、火石、石英玻璃 | 直径公差： | +0/-0.02mm |
| 中心厚度公差： | ±0.01m | 表面面形误差(AN): | 0.2~0.5 |
| 中心偏差： | <1' | 表面质量： | 40-20 |
| 通光孔径： | >95%中心区域 | 镀膜： | 单层MgF2:宽带增透膜，或根据要求 |
产品规格参数
| 平凸透镜（尺寸及镀膜可按用户需求定制）单位mm | |||||
| 序号 | 品号 | 焦距 | 外径 | 中心厚度 | 材料 |
| 1 | PC-010 | -47.27 | 14.0 | 3.2 (±0.1) | BaF4 |
| 2 | PC-020 | 15.07 | 5.5 | 1.6 (±0.05) | BK7 |
| 3 | PC-030 | 15.46 | 6.0 | 1.5 (±0.2) | K9 |
| 4 | PC-040 | 17.50 | 8.0 | 1.8 (±0.05) | K9 |
| 5 | PC-050 | 19.30 | 16.0 | 5.0 (±0.1) | ZK9 |
| 6 | PC-060 | 23.22 | 14.8 | 5.0 (±0.1) | K9 |
| 7 | PC-070 | 23.85 | 13.0 | 2.8 (±0.1) | K9 |
| 8 | PC-080 | 24.00 | 6.0 | 1.5 (±0.1) | K9 |
| 9 | PC-090 | 24.98 | 20.0 | 8.0 (±0.1) | K9 |
| 10 | PC-010 | 25.01 | 20.0 | 8.0 (±0.1) | K9 |
| 11 | PC-011 | 25.01 | 20.0 | 8.0 (±0.1) | K9 |
| 12 | PC-012 | 25.47 | 9.0 | 2.0 (±0.1) | K9 |
| 13 | PC-013 | 25.74 | 8.0 | 2.3 (±0.1) | BK7 |
| 14 | PC-014 | 26.91 | 28.0 | 4.3 (±0.1) | ZK7 |
| 15 | PC-015 | 29.05 | 8.0 | 2.5 (±0.1) | K9 |
| 16 | PC-016 | 30.00 | 6.3 | K9A | |
| 17 | PC-017 | 30.13 | 5.0 | 1.3 (±0.05) | BK7 |
| 18 | PC-018 | 30.55 | 22.0 | 6.0 (±0.05) | ZK3 |
| 19 | PC-019 | 30.69 | 8.0 | 1.6 (+0.2/-0.1) | K9 |
| 20 | PC-020 | 31.07 | 5.0 | 2.0 (±0.1) | H-ZF52 |
| 21 | PC-021 | 31.89 | 24.0 | 6.7 (±0.2) | 普通玻璃 |
| 22 | PC-022 | 32.00 | 15.8 | 3.0 (±0.1) | K9 |
| 23 | PC-023 | 32.59 | 25.0 | 6.0 (±0.05) | H-ZK3 |
| 24 | PC-024 | 33.17 | 25.0 | 6.5 (±0.05) | ZK3 |
| 25 | PC-025 | 34.45 | 6.0 | 2.0 (±0.05) | K9L |
| 26 | PC-026 | 40.00 | 16.0 | 2.3 (±0.05) | LaK11 |
| 27 | PC-027 | 40.42 | 6.4 | 1.5 (±0.05) | 硬质白玻璃 |
| 28 | PC-028 | 42.38 | 29.5 | 8.0 (±0.1) | K9 |
| 29 | PC-029 | 42.38 | 28.4 | 8.0 (±0.1) | K9 |
| 30 | PC-030 | 44.56 | 28.4 | 6.0 (±0.1) | K9 |
| 31 | PC-031 | 44.93 | 7.5 | 2.5 (0/-0.2) | H-K9L |
| 32 | PC-032 | 45.09 | 8.0 | 2.0 (±0.2) | 普通玻璃 |
| 33 | PC-033 | 48.19 | 20.0 | 5.3 (±0.1) | K9 |
| 34 | PC-034 | 50.00 | 25.0 | 5.0 (±0.1) | K9 |
| 35 | PC-035 | 51.84 | 38.0 | 9.0 (±0.1) | 普通玻璃 |
| 36 | PC-036 | 52.60 | 22.0 | 3.8 (±0.1) | K9 |
| 37 | PC-037 | 56.89 | 25.0 | 4.0 (±0.05) | K9 |
| 38 | PC-038 | 57.53 | 22.0 | 3.5 (±0.1) | K9 |
| 39 | PC-039 | 58.10 | 30.0 | 5.6 (±0.2) | 普通玻璃 |
| 40 | PC-040 | 59.57 | 23.0 | 4.0 (±0.04) | H-K9L |
| 41 | PC-041 | 60.84 | 23.0 | 4.0 (±0.04) | H-K9L |
| 42 | PC-042 | 63.32 | 23.0 | 3.8 (±0.05) | BAK1 |
| 43 | PC-043 | 65.02 | 35.0 | 6.7 (±0.1) | K9 |
| 44 | PC-044 | 72.97 | 6.0 | 3.0 (±0.1) | H-ZF52 |
| 45 | PC-045 | 84.70 | 8.0 | 1.8 (±0.02) | QK3 |
| 46 | PC-046 | 86.19 | 38.0 | 6.0 (±0.2) | H-QK3 |
| 47 | PC-047 | 87.39 | 19.0 | 3.0 (±0.1) | ZK11 |
| 48 | PC-048 | 120.00 | 30.0 | 3.8（±0.15） | K9 |
| 49 | PC-049 | 133.99 | 32.0 | 4.3 (±0.1) | K9 |
| 50 | PC-050 | 150.45 | 38.0 | 5.3 (±0.1) | K9 |
| 51 | PC-051 | 190.00 | 24.0 | 3.5 (±0.1) | ZF1 |
| 52 | PC-052 | 747.52 | 20.0 | 2.1 (±0.05) | H-K9L |
| 53 | PC-053 | 852.34 | 20.0 | 2.0 (±0.05) | H-K9L |
| 54 | PC-054 | 1016.99 | 20.0 | 2.0 (±0.05) | H-K9L |
| 55 | PC-055 | 1173.89 | 20.0 | 2.1 (±0.05) | H-K6 |
| 56 | PC-056 | 1411.70 | 20.0 | 2.0 (±0.05) | H-K9L |
| 57 | PC-057 | 20.00 | 20.0 | 2.1 (±0.05) | H-K9L |
| 58 | PC-058 | 2399.38 | 20.0 | 2.1 (±0.05) | H-K9L |
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